Originally Posted by
corporate-wage-slave
OK, not helped by the OP playing along with the reply! And even now, it's not clear what is the route, is it CTU-CAN-PVG, for example?
Guangzhou and Chengdu in the 24 and 72 hour visa free schemes, but it does require strict adherence to the rules. If it's 24 hours then all you need is quick access to the onward flight details, including PNR. If it's more than 72 hours then you need to present the hotel details, showing the telephone number, since they may well call. I have used visa free access in both CAN and CTU, and though it does take a few minutes in both cases, and you won't get much of a smiley face, it does work perfectly well.
I may be totally wrong on this, in which case I do apologise, but I thought that the visa-free transit was only available when arriving from an international flight departing to an international flight to a different country within the appropriate period (72hrs at most airports, 144 in some like PVG), ie not valid if you have to take a domestic flight. Is this not the case?